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Ratio of males to females in a population
secondary sex ratio — ratio at birth tertiary sex ratio — ratio in sexually mature organisms The tertiary sex ratio is equivalent to the adult sex ratio (ASR)
Sex_ratio
Ratio of males to females in a population
human sex ratio is the ratio of males to females in a population in the context of anthropology and demography. In humans, the natural sex ratio at birth
Human_sex_ratio
The human sex ratio is the comparative number of males with respect to each female in a population. This is a list of sex ratios by country or region.
List of countries by sex ratio
List_of_countries_by_sex_ratio
Pregnancy termination based on predicted sex
both the sex ratio at birth and the population sex ratio are remarkably constant in human populations. Significant deviations in birth sex ratios from the
Sex-selective_abortion
Sex ratio is used to describe the ratio of females to males in a population. In India, the sex ratio has been estimated via a number of methods and data
List of states and union territories of India by sex ratio
List_of_states_and_union_territories_of_India_by_sex_ratio
Demographic phenomenon in China
the census data in China has recorded a significant imbalance in the sex ratio toward the male population, meaning there are fewer women than men. This
Sex-ratio_imbalance_in_China
The child sex ratio in India is defined as the number of females per thousand males in the age group 0–6 years in a human population. Thus it is equal
Child_sex_ratio_in_India
Trait that determines an organism's sexually reproductive function
Internet Archive. Hamilton WD (April 1967). "Extraordinary sex ratios. A sex-ratio theory for sex linkage and inbreeding has new implications in cytogenetics
Biological_sex
Quantitative ratio of sexually active population
the evolutionary biology of sexual reproduction, operational sex ratio (OSR) is the ratio of sexually competing males that are ready to mate to sexually
Operational_sex_ratio
Ratio of lengths of fingers
statistically significant sex differences in digit ratio were established in a sample of 201 men and 109 women, after which time the sex difference appears to
Digit_ratio
Competition between males to mate with a female
the opportunity to mate with a female. Sexually dimorphic traits, size, sex ratio, and the social situation may all play a role in the effects male-male
Male_intrasexual_competition
Village in Chandigarh, India
village. Overall sex ratio in the village has decreased by 62 females per 1000 male during the years from 2001 to 2011. Child sex ratio here has decreased
Dhanas
Personality disorder involving excessive emotionality and attention-seeking
setting, with the sex ratio not differing significantly from this ratio. Gender roles may play a role, with a suggested reason for the sex ratio in diagnosis
Histrionic personality disorder
Histrionic_personality_disorder
Group in the Indian state
women in India, including high female literacy, low fertility, and a sex ratio that favours women. The rate of female participation in paid work, by
Women_in_Kerala
Population control policy in China (1979–2015)
others of whom were adopted abroad. Over time, this skewed the country's sex ratio toward men and created a generation of "missing women". However, the policy
One-child_policy
attitudes towards son preference have changed, normalizing the sex ratio and lowering the number of sex-selective abortions. Additionally, during the entire 20th
Sex-selective abortion in South Korea
Sex-selective_abortion_in_South_Korea
Phenomenon in human reproduction
after periods of war. The effect is one of many factors influencing human sex ratio. It was especially noticeable worldwide during and following the World
Returning_soldier_effect
Cheating, adultery, or having an affair
area has a high sex ratio when there is a higher number of marriage-aged women to marriage-aged men and an area has a low sex ratio when there are more
Infidelity
being the poorest districts in terms of sex-ratio, depicting a negative-correlation among literacy and sex-ratio in this case. The districts of Srawasti
Demographics_of_Uttar_Pradesh
Sex ratio of districts of Pakistan
Sex ratio is used to describe the ratio of females to males in a population. The sex ratio in Pakistan is generally male-skewed, with more males than females
List of districts of Pakistan by sex ratio
List_of_districts_of_Pakistan_by_sex_ratio
It found the sex ratio for Indonesia is 102.34, which means that for every 100 females, there are 102-103 males. The largest sex ratio is in Papua with
2020_Indonesian_census
Village in Punjab, India
population of village. Average Sex Ratio is 908 per 1000 males which is higher than the state average of 895. The child Sex Ratio as per census is 1250, higher
Bhaini_Gahi
Village in Punjab, India
population of village. Average Sex Ratio is 903 per 1000 males which is higher than the state average of 895. The child Sex Ratio as per census is 681, lower
Sri_Bhaini_Sahib
average for the sex ratio shows an increase from 933 in 2001 to 940 in 2011, the 2011 census shows a sharp decline in the child sex ratio, the number of
List of states and union territories of India by population
List_of_states_and_union_territories_of_India_by_population
Chinese slang term
Abnormal sex ratios can be broken down into two categories; sex ratio at birth (number of male births for every 100 female births) and sex ratio in population
Guang_gun
Indian city
2011. Banda Nagar Panchayat, female sex ratio is of 937 against state average of 931. Moreover the child sex ratio in Banda is around 991 compared to Madhya
Banda,_Madhya_Pradesh
Illegal abortion of females in India
decline in preference for sons or daughter in the time period. The natural sex ratio is assumed to be between 103 and 107 males per 100 females, and any number
Female_foeticide_in_India
Village in Punjab, India
population of village. Average Sex Ratio is 864 per 1000 males which is lower than the state average of 895. The child Sex Ratio as per census is 866, higher
Dolon_Kalan
Species of bee
ISSN 1365-294X. PMID 20666996. S2CID 3213349. Yanega, D. (1996) Sex ratio and sex allocation in sweat bees (Hymenoptera: Halictidae). J. Kansas Ent
Halictus_rubicundus
Neighbourhood in Namakkal district, Tamil Nadu, India
The sex ratio is the ratio of Varagur males to females in the population of 8911 (normalized to 100). In most sexually reproducing species, the ratio tends
Varagur
Village in Maharashtra
population of village. Average Sex Ratio of Khasgaon village is 903 which is lower than Maharashtra state average of 929. Child Sex Ratio for the Khasgaon as per
Khasgaon
Village in Andhra Pradesh, India
As of 2011 census there are 968 females per 1000 male in the village. Sex ratio in general caste is 986, in schedule caste is 944 and in schedule tribe
Ponugupadu
Desirable qualities in partners
number of sex differences in human mating psychologies. Human mating is dependent on the operational sex ratio. The local operational sex ratio has been
Mate_choice_in_humans
State in central India
population. The sex ratio in the state is one of the most balanced in India with 991 females per 1,000 males, as is the child sex ratio with 964 females
Chhattisgarh
The sex ratio of the different administrative divisions of China has been the subject of academic study because of a high imbalance in births since the
List of Chinese provincial-level divisions by sex ratio
List_of_Chinese_provincial-level_divisions_by_sex_ratio
District of Jammu and Kashmir administered by India in Jammu & Kashmir
population growth rate over the decade 2001-2011 was 27.97%. Poonch has a sex ratio of 893 females for every 1000 males (which varies with religion), and
Poonch_district,_India
City in Karnataka, India
literacy was 89.02 and 80.71 per cent. The sex ratio of Davanagere city is 979 per 1000 males. Child sex ratio of girls is 954 per 1000 boys. Davanagere
Davanagere
Method of determining sex
affects the sex ratio of the sperm that reach the egg. Sex-specific mortality of embryos also occurs. Aristotle believed incorrectly that the sex of an infant
XY_sex-determination_system
Town in Andhra Pradesh, India
literacy was 74.02 and 58.06 percent. The sex ratio of Adoni city is 1017 per 1000 males. Child sex ratio of girls is 965 per 1000 boys. Total no. of
Adoni
Young female human
sex ratios at birth. Countries which have sex ratios of 108 and above are usually presumed as engaging in sex selection. However, deviations in sex ratios
Girl
Assisted reproductive technology procedure
male sex ratio; however, adding retinoic acid to the culture can bring this ratio back to normal. A second theory is that the male-biased sex ratio may
In_vitro_fertilisation
Artificial selection of the sex of offspring
Population Fund, the reasons behind sex selection are due to three factors and provide an understanding for sex ratio imbalances as well as to project future
Sex_selection
Village in Punjab, India
population of village. Average Sex Ratio is 886 per 1000 males which is lower than the state average of 895. The child Sex Ratio as per census is 1000, higher
Bhaini_Kima
City in Uttar Pradesh, India
Nagar Palika Parishad, the female sex ratio is of 902 against the state average of 912. Moreover, the child sex ratio in Sonbhadra is around 867, compared
Robertsganj
Village in Punjab, India
population of village. Average Sex Ratio is 947 per 1000 males which is higher than the state average of 895. The child Sex Ratio as per census is 910, higher
Bhairo_Munna
Village in Kerala, India
years. Thus as per the Census 2011 the Child Sex Ratio of Eyyal is 1,026 which is less than the Average Sex Ratio (1,172). As per the Census 2011, the literacy
Eyyal
Village in Punjab, India
population of village. Average Sex Ratio is 871 per 1000 males which is lower than the state average of 895. The child Sex Ratio as per census is 1002, higher
Bajra_(Ludhiana_East)
Species of ant
is not fully understood. Studies of F. truncorum have shown that the sex ratio varies between being female-biased or male-biased depending on how many
Formica_truncorum
Species of bee
proportions to a larger cell. The sex ratio changes depending on nest size, length, and nesting material. This ratio is controlled by the female. These
Megachile_rotundata
Village in Punjab, India
population of village. Average Sex Ratio is 818 per 1000 males which is lower than the state average of 895. The child Sex Ratio as per census is 286, lower
Bhagwanpura_(Ludhiana_East)
Willingness for extra-relationship sexual activity
to have more offspring through casual sex), unrestricted parents have a higher-than-expected offspring sex ratio (more sons). According to the parental
Sociosexuality
Village in Punjab, India
population of village. Average Sex Ratio is 946 per 1000 males which is higher than the state average of 895. The child Sex Ratio as per census is 1192, higher
Bhaini_Doaba
dependency ratio: 72.16 (2022 est.) youth dependency ratio: 60.5 (2020 est.) elderly dependency ratio: 3.9 (2020 est.) potential support ratio: 25.5 (2020
Demographics of Equatorial Guinea
Demographics_of_Equatorial_Guinea
Biology theory
Fisher developed an explanation, known as Fisher's principle, of why sex ratios in many animals are 1:1. If there were 10 times more females in a population
Sex_allocation
Certain types of human sexual activity as alternative to a romantic relationship
men sex ratio was found to increase casual sex. Research suggests that as many as two thirds to three quarters of American students have casual sex at
Casual_sex
Species of beetle
paedogenetic larvae, the sex ratio is strongly biased toward females. None of the three canonical explanations for biased sex ratios, local mate competition
Telephone-pole_beetle
Biological system that determines the development of an organism's sex
threshold during the temperature sensitive period, the sex ratio is varied between the two sexes. Some species' temperature standards are based on when
Sex-determination_system
Town in Bihar, India
bracket, the sex ratios were more equal: Nokha town's was 899, while the ratio among rural villages was 945, bringing the overall block ratio to 938. The
Nokha,_Rohtas
subsequent female infanticide has resulted in a significantly lowered sex ratio within India, creating an abundance of unmarried men in Haryana, Punjab
Bride_buying_in_India
Evolutionary model that explains the sex ratio
Fisher's principle is an evolutionary model that explains why the sex ratio of most species that produce offspring through sexual reproduction is approximately
Fisher's_principle
Village in Chandigarh union territory in India
Thus as per the Census 2011, the Child Sex Ratio of Kaimbwala is 856 which is greater than the Average Sex Ratio (802) of Kaimbwala village. As per the
Kaimbwala
Town in Karnataka, India
1000 males. The overall sex ratio has gone up by 47 females per 1000 males during the period of 10 years. The Child sex ratio here has also increased
Saligrama,_Mysore
female offspring in response to environmental conditions. Sex ratio behaviour is the sex ratio response of a female in various conditions. Mutation accumulation
Behavior_mutation
Species of moth
have shown that a significant amount of sex-ratio distortion occurs in O. scapulalis. Two mechanisms of sex-ratio distortion are believed to occur in this
Ostrinia_scapulalis
distinct minority communities including Anglo-Indians and Siddi. The human sex ratio has shown an upward trend after decades of decline, reaching 943 females
Demographics_of_India
Town in Andhra Pradesh, India
declined. Kandukur Municipality has a sex ratio of 999, meaning there are 999 females per 1000 males. The sex ratio for Kandukur Mandal is 989 which is
Kandukur
Taluk in Tamil Nadu, India
Kilvelur block In Kilvelur taluk, the female sex ratio is 1058 against state average of 996. Moreover, child sex ratio in Kilvelur is around 938 compared to
Kilvelur_taluk
Village in India
As of 2011 census there are 1122 females per 1000 male in the village. Sex ratio in general caste is 1127, in schedule caste is 967 and in schedule tribe
Hejamadi
15th Indian census
in population census in India for the first time in 2011. The overall sex ratio of the population is 943 females for every 1,000 males in 2011. The official
2011_census_of_India
District of Jammu and Kashmir administered by India
(2011), of whom 49.67% are Muslims and 48.90% are Hindus. Reasi has a sex ratio of 890 females for every 1000 males (which varies with religion), and
Reasi_district
Species of fly
the host in the process. Interestingly, P. tricuspis has a male-biased sex ratio, where the males are smaller than the females. Pseudacteon tricuspis is
Pseudacteon_tricuspis
City administered by India in Jammu & Kashmir
girls per 1000 boys. Between 2001 and 2011, Samba's overall sex ratio and child sex ratio have increased by 177 females per 1000 males and 36 girls per
Samba,_Jammu_and_Kashmir
Practice of a person marrying a spouse of higher social status
service in Israel that had a highly skewed sex ratio (646 men for 1,000 women). Despite this skewed sex ratio, they found that "On education and socioeconomic
Hypergamy
American evolutionary biologist and sociobiologist (1943–2026)
of reciprocal altruism (1971), parental investment (1972), facultative sex ratio determination (1973), and parent–offspring conflict (1974). He has also
Robert_Trivers
District of Uttar Pradesh in India
489%. Meerut has a sex ratio of 886 females for every 1000 males, lower than the state average of 908; while the child sex ratio is 852, lower than the
Meerut_district
Relationship between two numbers of the same kind
(mathematics) Scale (map) Scale (ratio) Sex ratio Superparticular ratio Slope New International Encyclopedia (1916). "Ratios". www.mathsisfun.com. Retrieved
Ratio
Species of bee
male-biased sex ratio. Additionally, the two sexes emerged at different times, with males usually emerging before new queens. Male-biased sex ratios tend to
Bombus_ruderatus
Village in Punjab, India
population of village. Average Sex Ratio is 881 per 1000 males which is lower than the state average of 895. The child Sex Ratio as per census is 642, lower
Gaunspur_(Ludhiana_West)
Theory of sexual orientation
(1997). "Birth order and sibling sex ratio in homosexual versus heterosexual males and females". Annual Review of Sex Research. 8: 27–67. doi:10.1080/10532528
Fraternal birth order and male sexual orientation
Fraternal_birth_order_and_male_sexual_orientation
Species of beetle
competition. The probability of a beetle guarding is dependent on both the sex ratio and the size of an individual. A larger beetle is more likely to guard
American_carrion_beetle
Vietnam's sex ratio to match that of other countries in the region, where proportions are uneven and men outnumber women. In 2006, the sex ratio was found
Women_in_Vietnam
Species of wasp
Fisher's theory of sex ratio selection, when competition for mates is population wide, parents will evolve to invest equally in both sexes. However, in eusocial
Polistes_fuscatus
Town in Puducherry, India
the Sex ratio (1184 females per 1000 male) and the literacy rates in Mahe are relatively higher compared to the rest of the nation. The national Sex ratio
Mahé,_India
Species of rodent
ratio between males and females is not split evenly; males have been reported to have a larger population share. Potential factors for the uneven sex
Jungle_palm_squirrel
Species of wasp
most species that deviate from a 1:1 sex ratio, there is a degree of sexual dimorphism, with the more common sex being smaller. Polistes metricus follows
Polistes_metricus
Species of insect
sex ratio differs from the standard Hymenoptera three to one ratio as proposed by the haplodiploidy hypothesis, and sits closer to an even sex ratio.
Bombus_ternarius
Species of bee
preferred 1:1 sex ratio in B. terrestris populations. This is unusual for monogamous social insects, which usually have a 3:1 sex ratio indicative of
Bombus_terrestris
Northern Mariana Islands have the highest female ratio with 0.77 males per female. Qatar has the highest male ratio, with 2.87 males/female. For the group aged
Demographics_of_the_world
unaccounted for. It found the sex ratio for Indonesia is 101, which means that for every 100 females, there are 101 males. The largest ratio is in Papua with 113
2010_Indonesian_census
Village in Punjab, Ludhiana India
population of village. Average Sex Ratio is 912 per 1000 males which is higher than the state average of 895. The child Sex Ratio as per census is 766, lower
Assi_Kalan
District of Maharashtra in India
population growth rate over the decade 2001–2011 was 25.5%. Nandurbar has a sex ratio of 972 females for every 1000 males, and a literacy rate of 64.38%. 12
Nandurbar_district
Anthropomorphic robot sex doll
destroying a sex robot which was claimed to be a legal spouse by its owner. Agalmatophilia Gynoid Joe's Garage Operational sex ratio Robot fetishism Sex machine
Sex_robot
Indian politician
female foeticide was seen in the early tenure of Rao. It was reported that sex ratio in the State fell from 947 to 929 in 2023. Addressing the issue in the
Dinesh_Gundu_Rao
Village in Punjab, India
population of village. Average Sex Ratio is 904 per 1000 males which is higher than the state average of 895. The child Sex Ratio as per census is 855, higher
Baura,_Ludhiana
District in Uttar Pradesh, India Purvanchal
females are 146,343. Sex Ratio in urban region of Sonbhadra district is 871 as per 2011 census data. Similarly child sex ratio in Sonbhadra district
Sonbhadra_district
Village in Punjab, India
population of village. Average Sex Ratio is 908 per 1000 males which is higher than the state average of 895. The child Sex Ratio as per census is 712, lower
Bhaini_Salu
National census of Myanmar undertaken in 2014
state/region capitals. Other information included were indicators such as sex ratio and population density. The results showed that the total population is
2014_Myanmar_census
Town in Karnataka, India
Female Sex ratio per 1000 male in Hindus are 986 in Muslims are 961. As of 2011 census there are 980 females per 1000 male in the city. Sex ratio in general
Mahalingpur
Genus of algae
gametangial sheath, leading to the thallic disintegration. The overall primary sex ratio of this alga is about 1:1 which is likely to reflect Fisherian selection
Monostroma
Type of small omnivorous rodent
sensitive to the operational sex ratio and tend toward monogamy when males and females are present in equal numbers. Where one sex is more numerous than the
Vole
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SEX RATIO
SEX RATIO
Boy/Male
Latin
right-handed.
Male
English
Short form of English unisex Alex, LEX means "defender of mankind."
Boy/Male
Hindu, Indian
Sea; See
Male
English
19th century English name derived from Latin rex, REX means "king."
Surname or Lastname
English
English : variant spelling of See.
Male
Irish
Irish Gaelic form of French Jean (English John), SEÃN means "God is gracious."
Boy/Male
Latin Egyptian
Venerable.
Boy/Male
Welsh
Legendary son of Selgi.
Surname or Lastname
English and German
English and German : topographic name for someone who lived by the sea-shore or beside a lake, from Middle English see ‘sea’, ‘lake’ (Old English sǣ), Middle High German sē. Alternatively, the English name may denote someone who lived by a watercourse, from an Old English sēoh ‘watercourse’, ‘drain’.
Surname or Lastname
English
English : variant of Ricks.German : habitational name from a place so named near Fulda.Latinized form of German Koenig.
Boy/Male
Australian, Egyptian, French, Greek, Latin
God of the Earth; From Sebastia
Surname or Lastname
English
English : probably a variant of Jacks.German : unexplained; perhaps a patronymic from the personal name Jeck.
Boy/Male
Greek English
Defender of men. Alexander the Great was a 4th century Macedonian king for whom the Egyptian city...
Boy/Male
British, English, Italian, Russian
Boy who Always Nice to Others
Boy/Male
English American
Derived from the U.S. state of Texas.
Boy/Male
English American Latin
Mighty counselor-ruler.
Boy/Male
Biblical
Mame, renown.
Boy/Male
Egyptian Hebrew Swedish
Son of Seb and Nut.
Boy/Male
Australian, Biblical, Danish, German, Swedish
Mame; Renown; Sun Child; Little Sun
Surname or Lastname
South German
South German : variant of Sachs 1.Dutch : variant of Sas 1 and 3.English : from an Old Norse personal name, Saxi meaning ‘sword’.Jewish (Ashkenazic) : variant spelling of Sachs.
SEX RATIO
SEX RATIO
SEX RATIO
SEX RATIO
SEX RATIO
SEX RATIO
SEX RATIO
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